Global Patent Index - EP 3667791 A1

EP 3667791 A1 20200617 - REDOX FLOW BATTERY

Title (en)

REDOX FLOW BATTERY

Title (de)

REDOX-FLOW-BATTERIE

Title (fr)

BATTERIE REDOX

Publication

EP 3667791 A1 20200617 (EN)

Application

EP 17920821 A 20170809

Priority

JP 2017028897 W 20170809

Abstract (en)

A redox flow battery includes: a membrane; and electrodes that are disposed in a compressed state on both sides of the membrane and sandwich the membrane. The thickness x (µm) of the membrane and the compression ratio y (%) of the electrodes satisfy the following relation A or B: (A) when the electrodes are formed from carbon felt, y < x + 60, 30 ≤ y ≤ 85, and 5 ≤ x ≤ 60 hold; (B) when the electrodes are formed from carbon cloth or carbon paper, y < 1.2x + 42, 10 ≤ y ≤ 85, and 5 ≤ x ≤ 60 hold, where y = {1- (the thickness during compression / the thickness before compression)} × 100.

IPC 8 full level

H01M 8/18 (2006.01)

CPC (source: EP US)

H01M 4/96 (2013.01 - EP US); H01M 8/18 (2013.01 - US); H01M 8/188 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3667791 A1 20200617; EP 3667791 A4 20200819; CN 110998945 A 20200410; JP 6903286 B2 20210714; JP WO2019030844 A1 20200813; TW 201911633 A 20190316; US 11342572 B2 20220524; US 2021159532 A1 20210527; WO 2019030844 A1 20190214

DOCDB simple family (application)

EP 17920821 A 20170809; CN 201780093729 A 20170809; JP 2017028897 W 20170809; JP 2019535494 A 20170809; TW 107119760 A 20180608; US 201716633379 A 20170809